Gas-engine



Patented July 26, |898.

c. uuAsT. GAS E N G I N E.

(Application led Jan. 5, 1895.)

(No Model.)

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4Arnim* FFlCtE@ CHARLES QUAST, OF BUOYRUS, OHIO.

GAS-ENGIN E.

SPECIFICATION forming part of Letters :Patent No. 607,879, dated July26, 1898.

Application filed January 5 1895.

To all whom it may concern:

Be it known that I, CHARLES QUAST, a citizen of the United States,residing at Bucyrus, in the county of Crawford and State of Ohio, haveinvented certain new and useful Improvements in Gas-Engines, of whichthe following is a specification, reference being had therein to theaccompanying drawings.

Figure 1 is a longitudinal vertical section through the cylinder andvalve-chest. Fig. 2 is a vertical cross-section through cylinder andvalve-chest. Fig. 3 shows governor and arrangement with oscillatingvalve. Figs. 4 and 5 show igniter. A

The bed-plate 1 carries crank-shaft 2 and cylinder 11. The gear 4 oncrank-shaft 2 meshes in governor-gear 5, thelatter being fixed on theshaft 8. The'shaft 8 carries the bevel-gear 6, which meshes in thebevel-gear 7. The bevel-gear 7 is splined on shaft 9, which carrieshollow cylindrical conical valve 19, which rotates in valve-seat 18. Thecylinder 11 carries valve-seat 18 and valve-seat 41, the latter havinginlets 48 and 42. The valve chamber 38 communicates through port 37, thevalve-port 22, and mixing-chamber 26 with the igniting-chamber 71, and

through the port 17 with the combustionchamber 16. The conicalvalve-seat 18 has an exhaust-port 45. The oscillating valve 40 is movedby the rod 39, lever 50, and rod 52, the latter connecting with thegovernor through ring 74. The valve 40 is held in its seat by the spring44, which is placed between valve-stem 39 and the bottom of the valve.The rotating valve-stem `9 passes through the valve 19 and carries the'ignitingpole 24. The rotating valve-stem 9 carries on the other end thespring 75, which is held in position by nut 76, and presses against thebed-plate 1, thus keeping the rotating valve in its seat.

The combustion-chamber cover 49 carries the igniter-rod 29, and this rodcarries the igniting-dog 27. The rod 29 carries fixed on the other endthe coupling 30, said coupling having an extension 65, provided with aslot 66, which is movable longitudinally and vertically about a pin 67.The pin 67 carries a spring 70 between lever 65 and the extension 68 ofthe bracket 35. The coupling 30 carsenn no. 533.915. (No man.)

ries a screw 31. Thelatteris screwed through 'a part 33 of the bracket35 and also carries lock-nuts 32 and has a turning pin 34. Thevalve-seat 18 and igniting-chamber 71 are surrounded by water-chamber36. The gear 5 carries on pins the swiveled weights 53, one` of whichwith its tail end connects by the links 54 with the opposite weight 53,and the tail end 59 ofthis weight is in contact with a spring `60, whichis on a pin 61 and bears against a rib 62. The lever 73 pivots on apoint 56 and with its tail end 57 connects with links 54. The ring oflever 73 carries the eccentric ring 74, which is part of rod 52. Thecrank-shaft 2 connects through connecting-rod 10 with piston 13. Bracket77 supports gear 7 and colla-r 78 keeps the gear in its place.

58 in Fig. 3 represents the center of rotation.

The operation is as follows: As crankshaft 2 rotates gears 4, 5, 6, and7 rotate, and with them shaft 9, hollow conical valve 19, andigniter-pole 24. As valve 19 :rotates communication is formed betweenvalvechamber 38 and igniting-chamber 71 through mixing-chamber 26, port22, and port 37 in one part of the revolution, and betweenigniting-chamber 71 and exhaust-port 45 through mixing-chamber 26 andport 22 in another part of the revolution. These communications arealternate as the valve rotates. Valve 40 is oscillated'by rotating rin g55 of the governor. Valve 40 opens both ports 48 and 42 at the same timethat port 22 of valve 19 crosses port 37 of valve-seat 18.` As theigniter-point 24 rotates point 72 will come in contact with point 28 ofigniter-dog 27 This will causeignitingdog 27 to move backward, whichcauses the compression of spring l through lever 65. Igniting-dog 27 isreleased after leaving contact with dog 24 on surface 25. Surface 25 istaper, as shown in drawings, and in moving movable igniting-dog 27longitudinally point 28 will be released earlier or later. The

amount of such movement is positively regulated by lock-nuts 32. Instarting the engine screw 31 is screwed inwarduntil the outer lock-nut32 .comes in contact with threadsupport 33, thus causing point 28 tomove toward the valve 19, and this causes a later IOO ' gas to en terthe engine in starting.

release between point 28 and surface 25. After the engine has attained anormal speed screw 3l is screwed outward until the inner lock-nut 32touches the inner surface of the threaded support 33, thus bringingpoint 28 toward the narrow end of igniting-dog 24, and point 28 will bereleased earlier from surface 25. The extreme positions of point 28 areregulated by moving either lock-nut 32 or screw 3l, thus giving aregulatable, positive, early, or late ignition of the charge. When theengine has reached a certain speed, governor-weights 53 will spread,thus causing, through links 54 connecting 57 ltail 73, and fulcrum 56,the movement of center of ring 55 toward the center of shaft 8, thusreducing the eccentrical movement of ring 55, bar 52, lever 50, and theoscillating movement of valve 40, and thus diminishing the amount andlength of opening of ports 48 and 42. If the speed of the enginecontinues to increase, the center of ring 55 will nally reach the centerof shaft 8, thus stopping valve 40 from moving, and this keeps eitherboth of the ports 48 or 42 or only one of them closed. The speed atwhich the standstill of valve 40 occurs is regulated by spring 60. Thevariation of oscillation of valve 40 causes the drawing in of heavier orlighter charges of explosives, and thus causing heavier or lighterexplosions to comply exactly with the load the engine has to pull. Ifthe load increases, the speed of the engine will diminish slightly, thuscausing governorweights to converge, and this will increase theeccentrical movement of ring 55 and the opening of valve 40, thusallowing a heavier charge to enter into the cylinder and giving aheavier explosion. On the other hand, if the load should diminish thespeed of the engine will slightly increase, thus causing thegovernor-weights to diverge, and this will decrease the eccentricalmovement of ring 55 and the opening of valve 40, thus allowing a lighterexplosion. If such diminishing of load should continue, governor-weights53 will have reached their extreme point, thus keeping valve 40 at ornearly at a standstill, thus keeping one or both of the ports closed andpreventing the suction of a charge.

"Ihe rod 52 has open end 63 and handpiec'e G4, which allows pin 5l to bedisengaged and moving valve 40 in such position as to allow Theignition-chamber 7l is located at the larger end of the valve 19, thusexposing the largest end 4 to the pressure, thus keeping the valveseated.

v pressure in the explosion-chamber.

For the same purpose is spring 75 placed at the end of the rotating rod9 to draw the rotating valve in its seat when there is no The air andgas inlets are kept in constant relation to each other. Valve-stem 9 canmove in gear 7 without changing the position of gear 7. Gear 7 issupported by bracket 77 and allows the shaft to slide with key 7 9 ingear 7. Spring 75 keeps valve and valve-stem in the normal position.

I claiml. In combination, the cylinder, the piston, the hollow conicalvalve, having its larger end open, and the ignition-chambercommunicating with the hollow conical valve, substantially as described.

2. In combination the cylinder, the piston, the rotarymain valve, therotary shaft Atherefor, the oscillating supplemental valve, the gearingfor rotating the rotary shaft, the pitman for operating the oscillatingpitman and the governor carried by the gear-wheel and connected to thepitman substantially as described.

3. In combination, the cylinder, the piston, the rotary main valve, therotary shaft therefor, the oscillating supplemental valve, thecrank-shaft, the gears 4 and 5 and the bevelgears 6 and 7 for rotatingthe rotary valveshaft, the pitman for oscillating the supplemental valveand the governor operated by the gearing and connected to the pitman,substantially as described.

4. In combination, the cylinder, the piston, the rotary main valve ofhollow conical form, the combustion-chamber 16, the ignitionchamber 71,amixture-chamber in the hollow valve, a suction-chamber, thesupplemental valve therein and the exhaust-port, said hollow valvehaving a port arranged to connect the combustion, ignition and mixingchambers with the suction-chamber in one position and to connect thecombustion-chamber, ignition-chamber and mixing-chamber with the exhaustin another position, substantially as described.

5. In combination the cylinder, the piston, the rotary valve of hollowform having an open end, the igniting-chamber at the open end of thevalve, the igniter therein, one pole of which is carried by the open endof the valve and the lateral port in the valve leading to the interiorthereof, substantially as described.

6. In combination the cylinder, the piston, the valve mechanism, theigniter comprising the moving pole, the yielding pole, the rotary shafttherefor under tension, and the screw for adjusting the yielding poleand the stops for limiting said adjustment.

7. In combination the cylinder, the piston, vthe valve mechanism, theigniter comprising a pole 24 and an adjustable pole and the positivestops for limiting the position of the adjustable pole in one oftwo'predetermined positions substantially as described.

8. In combination the cylinder, the piston, the valve mechanism, theigniter comprising the pole 24, the pole 28, the shaft carrying thesame, the coupling 30, the arm 65 secured thereto and under springItension, and the adjusting-screw connected to the coup- IOO ICS

IIO

ling and having stops substantially as described.

9. In combination the cylinder, the piston, the valve mechanism and theigniter comprising the taper-pole 24 and the pole to engage therewithsaid poles being adjustable relative to each other to vary the length ofcontact along the taper surface.

10. In combination the cylinder, the piston, the valve mechanism and theigniter comprising the yielding pole 28, the oscillating shaft carryingthe same and means for adjusting the pole longitudinally. l

11. In combination, the cylinder, the piston, the valve mechanism andthe igniter device comprising the poles adjusted to havelonger orshorter contact, the adjusting means and the adjustable lock-nuts forlim- CHARLES QUAST.

Witnesses:

A. J. YAWGER, W. H. OULP.

